HI all, Arduino noob here!I just got an old pioneer car stereo for free, and I would like to listen to my android media an control the player via the head unit for security reasons, using the ip bus connector (the one used by cd changers).I found a pioneer cd changer emulator that uses an ATMega8 to interface an usb mp3 player (yammp3). I have attached the schematics and the source code since I cannot acces the website today.I just discovered that android ADK has audio over usb capabilities, so it's just a matter of translating the code of the emulator and adapting it to my needs (time to remember my programming skills!).I also realized that arduino due is ADK ready and has a CAN bus interface, and that there's a library available so I think is the ideal for this project!according to this, I only need a CAN transceiver (with built in comparator) and few other components to get the phisical layer doneAdd a Car voltage regulator and I'm done with the soldering iron!

Am I correct or am I missing something? Any other advice?Thanks for the attention

some thoughts about the in-car power supply:Since I don't need arduino be on all the time, but only when the HU is on and set to the cd changer source, I don't need the circuit I linked before. I searched for a ready made dc-dc converter, and I came up with an LM2596S board (I'd buy arduino due and some other components from the same ebay seller). Unfortunately the ON/OFF pin seems to be always set to on (at least from what the seller told me).From the multi cd emulator posted above, I know that on the ip-bus there's an ASENBUS pin that emits a 12V 20mA signal.What's the best way to turn on/off arduino? use that signal to put arduino in sleep mode or simply use a relay (driven by a transistor) to cut the power before the DC converter?

hi,unfortunately I abandoned the project, too time/money consuming for listen to music a few miles a week I find out how to enable aux-in from the ip-bus, so I'm using a home made adapter to attach my android via 3.5mm jack.A smartphone mount and the right application (for now is Car Tunes) an I can control my "jukebox" easily via gestures.